Volvo AWD S70 Forum

INDEX FOR 10/2025(CURRENT) INDEX FOR 4/2002 S70 INDEX

[<<]  [>>]


THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD




  REPLY TO THIS MESSAGE Replies to this message will be emailed.    PRINT   SAVE 

Change engine computer? 1998 Volvo S70 S70 1998

posted by  afa7 on  Fri May 29 15:20 CST 2009
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Mon Jun 8 17:05 CST 2009
[RELATED]

My 1998 Volvo S70 was running fine. But the check engine light came up with throttle error. It was re-set without doing anything and was fine for 3K miles.

When the throttle error light came on again, my wonderful but non-Volvo mechanic tried replacing the throttle sensor (about $80-100 part). The error light still came on, so they put back the old throttle sensor. But now the car is stuck in 1st gear.

They think it needs a new (used) engine computer, that the throttle part of the computer is bad.

Any other things we should be looking for? I'm a single mother and really need the car to run but don't want to blow extra $ if I don't have to. Thank you!








  •   REPLY TO THIS MESSAGE Replies to this message will be emailed.    PRINT   SAVE 

    Change engine computer? 1998 Volvo S70 S70 1998

    posted by  KlausC on  Sat May 30 05:52 CST 2009
    Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
    last visit: Fri Oct 24 10:15 CST 2014
    [RELATED]

    There are 3 computers in the engine bay, ECU, TCU, and FI. They all work together and you car not shifting out of first should not have anything to do with the throttle position sensor. Perhaps your mechanic left a wire unplugged?

    The transmission control unit determines what gear the tranny is in, and stuck in first is a real problem. There are more codes than just a TPS error.

    Klaus
    --
    Common sense trumps a PhD







<< < > >>



©Jarrod Stenberg 1997-2022. All material except where indicated.


All participants agree to these terms.

Brickboard.com is not affiliated with nor sponsored by AB Volvo, Volvo Car Corporation, Volvo Cars of North America, Inc. or Ford Motor Company. Brickboard.com is a Volvo owner/enthusiast site, similar to a club, and does not intend to pose as an official Volvo site. The official Volvo site can be found here.